Thread-waxing device



W. C. MEYER.

THREAD WAXING DEVICE.

APPLICATION FILED NOV. 4.4918

" 1,387,606. Patented Aug. 16,1921.

J5 6- 0 '22 64 44 2 40 24 26 W655 Qfiventar UNITED STATES PATENT OFFICE.

WILLIAM C. MEYER, OF BEVERLY, MASSACHUSETTS, ASSIGNOB- T0 UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

THREAD-WAXING DEVICE.

Original application filed February 7, 1916, Serial No. 76,721.

Specification of Letters Patent.

Patented Aug. in, 1321.

Patent No. 1,341,065. Divided and this To all whom it may concern.

Be it known that I, WVILLIAM C. MEYER, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Thread-Waxing Devices; and I do hereby declare the following to be a full, clear, and exact descrlption of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to thread waxing devices for applying wax to sewing thread and more particularly to a stripping device for stripping the surplus wax from the thread.

The primary object of the present 1nvention is to produce an improved wax stripping device which is simple in construction, strong and durable, which can be readily adjusted to regulate the stripping action thereof or to compensate for different sizes of thread, and in which the accumu lated wax may be readily cleaned therefrom. i

\Vith this object in view, the invention consists of certain novel and improved constructions, arrangements and combination of parts hereinafter described and claimed, the advantages of which will be apparent to those skilled in the art from the followin description.

he invention is shown as applied to a thread waxing device having the construction illustrated and described in applicants pending application, Serial N 0. 7 6,721, filed February 7, 1916, of which the present application constitutes a division. It is to be understood, however, that the invention is not limited in its application to thread waxing devices of the particular type illustrated herein but that it may be applled to thread waxing devices of other forms and types.

The invention will be readily understood from the accompanying drawings illustrating the invention in its preferred form and the following detailed description of the constructions therein shown.

In the drawings Figure 1 is a view, partly in vertical section and partly in front elevation, of a thread waxing device with the invention applied thereto; Fig. 2 is adetail view of the wax stripping device in vertical section taken substantially on the line 2-2 of Fig. 8, and Fig. 3 is a detail view, in horizontal section, taken substantially on the line 33 of Fig. 2.

The thread waxing device illustrated in the accompanying drawings comprises a wax receptacle'6 having a cover 7, two U-shaped heating members 8 and 10 extending into the receptacle and a thread truck 12 mounted on a carrier 14: secured to the heating member 10. The parts above referred to have the same construction, arrangement and mode of operation as the corresponding parts of the device illustrated and described in applicants pending application Serial No. 76,721 and reference may be had to said application for a detailed description of the same. i

The thread as it enters the wax receptacle passes through an opening 16 in a sleeve l8 mounted on a detachable housing 20 attached to the cover of the receptacle, thence passes downwardly through the housing and through an opening in the cover into the receptacle, and under the truck 12. thence passes upwardly through the opening in the cover and through the housing and emerges from the housing through an opening 22 therein. V V i The stripping devices for stripping the wax from the thread as it emerges from the receptacle are mounted in this housing. The stripping devices comprise two peripherally engaging non-rotating rolls 24 and 26 fixed respectively to the shafts 2S and 30 mounted in bearings on the housing. These rolls are constructed. with registering grooves 32 and 34lwhich are substantially semi-circular in cross-section throughout their, circumferential length. and form at the contact point of the rolls, a substantially circular opening for the passage oi the thread. Each oi: the grooves in the rolls varies in size at different points in the periphery of the roll and the rolls are held from rotation during this normal operation but are arranged for simultaneous rotary adjustment to vary the size of the thread passage formed by the grooves. Intermeshing gear wheels 36 and 38 are mounted respectively on one end of each of the roll carrying shafts 28 and 30 and upon the opposite ends of these shafts are fixed heads or disks 40 and 42 having slots for the reception of a screw driver or other suitable tool. The rolls are held from rotation by means of a drawbolt 41 i mounted in a suitable bore in the housing 20 and having an enlargement which engages the shaft 30. The drawbolt is actuated to engage the enlargement thereon tightly with the shaft 30 by means of a nut 46 threaded thereon. After loosening the nut and thereby relieving the engagement of the drawbolt with the shaft 30, the rolls 24C and 26 may be rotated toadjust-the size of the thread passage between the rolls by means of a tool inserted in the slo't in one of the disks 4:0 and 42. The adiustment of the rolls is then maintained by tightening the drawbolt. The stripping action of the stripping rolls may thus be adjusted so that. inst the rightamount of wax is left on the thread the threa d passes throurrh the threa d pa ssacje between the rolls. or this adiustment may be utilized to renrulate the size of the thread passage 'For difi'erent sizes of thread. The

circnlarshape of the threadpassagre or open-l inn between the rolls causesthe rolls to act uniformly on the peri hery of the thread.

In order to permit the rolls to yield relatively when a knot or other enlarrrementin the thread passes between the rollsthe roll 24. is mounted for movement toward and from the roll 26 and is yieldinglypressed toward the roll-26. In the construction shown the shaft 28 is'mounted in hearinq slots in the housing 20 one oi which is shown at 48. Fig. 2. and the ro l 24l-is yieldinsrly pressed toward the rollEZG by means of a lever 50 pivoted at 59, and. havino: an. arm bearing;v on the periphery oi the roll 24. In the other arm of this lever is seated the lower end of a coiled spring! 54!.- which at its upper end enthe lower end of the sleeve 18. This spring actsthronszh the lever to keep the roll 24 pressed yieldingly against vtherroll 26. The-force with'which the roll Ztis pressed toward the roll 26 may be regulated by adjusting the sleeve 18 which is threaded into the housingQO.

To enable the wax which rapidlyacc-umulates on the rolls to be easily andquiclrly re.- moved', wax scrapers are mounted in position to hearon the peripheries of the rolls for scraping the war from the rolls. ()ne of these scrapers indicated at 56 consists of a bar mounted in the housing 2Ov substantially parallel with the axis of the rolls and arranged to hear at onset itsedges against the periphery of the roll 26. Another scraper bar indicated at 58 is formed on the lever 50 and constitutesthe portion of the lever which bears on the periphery of the roll 24. VVhenthe accumulated wax i'sto be removed from the rolls, the drawbolt 4.4: is loosened and the rolls are given a complete on the roll bythe thread stripping rolls so that the rolls may be easily removed from and replaced in the housing.

Having thus explained the nature and object of the present invention, and having specifically described a device embodying the invention in its preferred form, what isclaimed is:

1. A wax stripping devlce'having in combination two perlpherally engaging rolls,

one of which has a thread groove varying in size at different points in the periphery of the roll, means for holding the rolls from IO'lifttlOIl; means for scraping accumulated WEX from the rolls during-a rotation of the rolls, and means whereby the grooved roll may be rotatively adjustedto vary the size of the thread passageat the engaging point of the rolls.

2. A wax stripping device having, in com: bination, two peripherally engaging .rolls between which the thread passes, meansfor holding the rolls fromrotation, and means for supporting one of the rolls for yielding movement toward and from the other roll.

8. A was stripping device having, in combination two peripherally engaging rolls having; registering; thread grooves each varying in size at different points in the periph- V cry of the roll and together forming a thread.

passage at the engaging point of the rolls, means for holding therolls from rotation, means whereby the rolls may he rotatively adjusted to vary the size of the thread passage, and means for supportingoneot. the

rolls tor yielding movementv toward and fromithe other roll;

4. A wax strlpping device having, income bination. two peripherally engaging stripping rolls between whichthe thread passes, and a scraper bearing upon-one of the rolls to scrape from the rollthe wax deposited 5. A wax stripping devicehavingr, in come bination, two peripherally engagingrolls, means for supporting one ofthe rolls-for movement toward and from: the. other roll,

a scraper hearing on the periphery of the movable roll and a spring .actinr on thescraper to press the scraper againstthe movable rcll and to press .tliemovable roll toward the other. roll. 7

6. A waxstripping device having, in. combination two peripherally v engaging rolls,

means for supporting oneof therolls for movement toward and from the other roll, scrapers bearing: on the rolls. a lever upon whichlone of the. scrapers is. mounted, a

spring acting on the lever to press the scraper against the movable roll and to press the movable roll toward the other roll, and means whereby the tension of the spring may be adjusted.

7. A war; stripping device having, in combination, two cooperating rolls arranged to rotate on substantially parallel axes, means for holding the rolls from rotation during the thread stripping action thereof, means whereby the rolls may be rotatively adjusted,

and means for scraping accumulated Wax from the rolls during a rotation of the rolls.

8. A wax stripping device having, in combination, two cooperating rolls arranged to rotate on substantially parallel axes, means for holding the rolls from rotation during the thread stripping action thereof, and means for scraping accumulated wax from the rolls during a rotation of the rolls.

WILLIAM C. MEYER. 

